A-Lok Products Corporation

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Trenton, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Gasket suitable for use in sealing exterior of sewer pipe to openin...
- Patent number 4,508,355
- Issue date Apr 2, 1985
- A-Lok Products Corporation
- John Ditcher
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Gasket seal between sewer pipe and manhole opening
- Patent number 4,159,829
- Issue date Jul 3, 1979
- A-Lok Products Corporation
- John Ditcher
- B28 - WORKING CEMENT, CLAY, OR STONE